Safety and Efficacy of Levomilnacipran ER in Adolescent Participants With Major Depressive Disorder

Study LVM-MD-11 is a randomized, double-blind, placebo- and active-controlled, parallel group, fixed-dose study in adolescent patients, ages 12-17 years. The study will be approximately 10 weeks in duration: * 1-week screening/washout period * 8-week double-blind treatment period * 1-week double-blind down-taper period Participants who meet the eligibility criteria at Visit 2 (Baseline) will be randomized to 1 of 4 treatment groups: placebo, levomilnacipran 40 mg/day, levomilnacipran 80 mg/day, or fluoxetine 20 mg/day.